Tektronix TDS 820 User manual

User Manual
TDS 820
Digitizing Oscilloscope
070-8512-04
This document supports firmware version 2.00e
and above.

  
"$) *.3425-&.4 -".5'"$452&% #9 &+42/.*8 )"3 " 3&2*", .5-#&2 /. " 0".&, *.3&24 /2 4"( /2 34"-0&% /. 4)&
$)"33*3 )& '*234 ,&44&2 *. 4)& 3&2*", .5-#&2 %&3*(."4&3 4)& $/5.429 /' -".5'"$452& )& ,"34 '*6& %*(*43 /' 4)&
3&2*", .5-#&2 "2& "33*(.&% 3&15&.4*",,9 ".% "2& 5.*15& 4/ &"$) *.3425-&.4 )/3& -".5'"$452&% *. 4)&
.*4&% 4"4&3 )"6& 3*8 5.*15& %*(*43 )& $/5.429 /' -".5'"$452& *3 *%&.4*'*&% "3 '/,,/73
 &+42/.*8 .$ &"6&24/. 2&(/. 
 &+42/.*8 .*4&% *.(%/- 4% /.%/.
 /.9&+42/.*8 "0".
 &+42/.*8 /,,".%   &&2&.6&&. )& &4)&2,".%3
.3425-&.43 -".5'"$452&% '/2 &+42/.*8 #9 &84&2.", 6&.%/23 /543*%& 4)& .*4&% 4"4&3 "2& "33*(.&% " 47/ %*(*4
",0)" $/%& 4/ *%&.4*'9 4)& $/5.429 /' -".5'"$452& &(  '/2 "0".  '/2 /.( /.(  '/2 32"&, &4$
&+42/.*8 .$  /8  &"6&24/.  
2*.4&% *. 
/092*()4 E&+42/.*8 .$  ,, 2*()43 2&3&26&% &+42/.*8 02/%5$43 "2& $/6&2&% #9  ".% '/2&*(.
0"4&.43 *335&% ".% 0&.%*.( )& '/,,/7*.( "2& 2&(*34&2&% 42"%&-"2+3 !   ".%
:

WARRANTY
!                    " 
     "       "  !      
               !    
       "   " !      !   "
                
         " !     ! 
"                  "    ! 
        "     !  "   
   "  
 "   "  "      "       
  !          "        "
   !              
                   
              "    
THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THIS PRODUCT IN LIEU OF ANY OTHER
WARRANTIES, EXPRESSED OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX' RESPONSIBILITY TO REPAIR OR
REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR
BREACH OF THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS
ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

TDS 820 User Manual v
Safety
& '  " !' '" %)* '& &'+ #%('"!& + % #%")
"% +"(% #%"''"! ! '" #%)!'   '" ' ',! "&"&"#
& &'+ !"% '"! ##& '"  "#%'"%& ! &%) #%&"!!
& '*" '% & ##% ! !(&
H&'' !'& !'+ "!'"!& "% #%'& '' "( %&(' !
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& '*" '% & ##% "! $(# !'
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!' '&
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"! %& ' %!
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Symbols and Terms

Safety
Safety
vi
! $   "!  #"! " !#  &#  ! !"&  "
 $"  " " " "' !!  #" (
" " "
 $ "" ' ! #! "!  #" & ! !
Power So rce
 "' !! ! " "  "    % !#  ""
% " &   "   ! "% " !#& #" !  (
"% " !#& #"   #   ""$  # "
" # "  # #"  " %   ! !!"  !
!&!"  "
Gro nding the Digitizing Oscilloscope
 "' !! !  # " # " %    $
"  ! # " %   "    & %  " % 
 "  # !  $  &  # ! $  !  "!  
 "! " " #"  #"#" " !  " "' !(
!
"#" "  ""$  # "   "!  " "' !(
!   "" ! ' ! ! #! !  " ! ""
&  "  !#" !
Use the Proper Power Cord
! & " %    " !  &#  #" ! &
 %   "" !   "
Use the Proper F se
 $   '  #! & " #! !  "  "! !"  &#
 #" " & "& $" "  # " "
Do Not Remove Covers or Panels
 $  ! # &  "  " " "' !! %"#"
" !  $ !
Take Antistatic Preca tions
  "!""  # % !" !"  % %  %" " #" (
" !  " "' !!
Electric Overload
$ & "  "  " "' !!  $" "" !
#"! "  !  "" " 
Specific Preca tions

Safety
TDS 820 User Manual vii
Do Not Operate in Explosive Atmospheres
        
         
     



viii

TDS 820 User Manual ix
Contents
Preface xi.....................................................
Gettin Started
Overview 1Ć1...................................................
Cleanin 1Ć1....................................................
Product Description 1Ć2.........................................
Start Up 1Ć3.....................................................
Settin Up for the Examples 1Ć6..................................
Example 1: Displayin a Waveform 1Ć8...........................
Example 2: Multiple Waveforms 1Ć15..............................
Example 3: Automated Measurements 1Ć20........................
Example 4: Savin Setups 1Ć25....................................
Operatin Basics
Overview 2Ć1...................................................
At a Glance 2Ć3.................................................
Tri erin 2Ć13...................................................
Acquisition 2Ć17..................................................
Scalin and Positionin Waveforms 2Ć21...........................
Measurements 2Ć25..............................................
Reference
Overview 3Ć1...................................................
Acquisition Modes 3Ć2...........................................
Autoset 3Ć6.....................................................
Cursor Measurements 3Ć8.......................................
Display Modes 3Ć14..............................................
Graphics 3Ć21....................................................

Contents
Contents

Hardcopy 3Ć26...................................................
Help 3Ć34........................................................
Horizontal Control 3Ć35...........................................
Limit Testing 3Ć41................................................
Measurement System 3Ć47........................................
Probe Interface 3Ć60..............................................
Probe Selection 3Ć64.............................................
Remote Communication 3Ć71.....................................
Saving and Recalling Setups 3Ć75.................................
Saving and Recalling Waveforms 3Ć77.............................
Selecting Channels 3Ć80..........................................
Status 3Ć84......................................................
Triggering 3Ć85...................................................
Vertical Control 3Ć93..............................................
Waveform Math 3Ć97.............................................
oom 3Ć100.......................................................
Appendices
Appendix A: Options and Accessories AĆ1........................
Appendix B: Specifications BĆ1...................................
Appendix C: Algorithms CĆ1......................................
Appendix D: Packaging for Shipment DĆ1.........................
Appendix E: Factory Initialization Settings EĆ1.....................
Glossary
Index

TDS 820 User Manual xi
Preface
$ $ % $# &  # %  %* $ $ !
 Getting Started $%  #*$ ) & (% % !#%   ) &# %*+
 $ $ !
Operating Basics  '#$ $ !#!$  % !#%   % $ +
$ ! $ #%$ ! ) & &#$% () ) &# $%#&% ( #$ %
() %  $
 Reference $%  %$ ) &  ( % !# # $! %$$ 
!+  #   !% $%  %$$  '#  %% $% 
 Appendices !# '  !%   $$ #$ $% !# &% $!+
% $  %# &$&  #% 
   (  &%$ # #% % % &$ # $#'  % %*
$ $ !
H TDS 820 Programmer Manual $#$ &$   !&%# %  %# 
% %* $ $ ! %# & %  %#
H TDS TDS 820 Reference '$ ) &  "& '#'(   ( %
!#% ) &# %* $ $ !
H  Service Manual !# '$  #%   # % 
$#' ) &# %* $ $ !
Related Manuals

Preface
Preface
xii
" ( Getting Started " Reference '(#"' -#) + " *&#)' $&#.
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(#"'
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 &'' ( ' !") )((#" Set to 0 div
H#!(!' -#) !- * (# !  ' (#" &#!  $#$)$ !")
&'' SHIFT➞UTILITY➞Sy tem!"➞Config $#$)$ " ('
,!$  -#) &$( - $&'' ( !" !") )((#" Sy tem )"(
Config '  ( " ( $#$.)$ !")
Convention

TDS 820 User Manual 1Ć1
Overview
' '(#" $&'"('  $&#)( '&$(#" '(&( )$ "#&!(#" " #)&
,!$ ' ')''" ( (." #' #'#$' ' )"(#"' ' ( At
a Glance '(#" '(&(" #" $ / (#  $ -#) #( ( #&&( "#'
)((#"' " !")'
HExample 1 (' -#) #+ (# &'( ( (." #' #'#$ )' (
)(#'( )"(#" " '$ - " )'( +*#&!'
HExample 2 ,$ "' #+ (#  #"(&#  "  ( !) ($  +*#&!'
HExample 3 "(&#)' -#) (# ( )(#!( !')&!"( '-'(!
HExample 4 ')''' '*" " & " ( (." #' #'#$'
'()$'
 -#) # "#( $&#&! ( ,!$ ' )' ( Operating Basics " ReferĆ
ence '(#"' (# &" #)( ( (." #' #'#$' &#"( $" "
!") &&"!"( " '$ )"(#"'
 " ( #' #'#$ ' #(" ' #$&(" #"(#"' &%)&
CAUTION
*# ( )' # !  "" "(' + !( ! ( $ '('
)' " (' #' #'#$ ' #" - #". +(& +"  "" ( !")
)((#"' #& &#"(/$" )((#"' '  '*"(-/* $&"(  '#$&#$-
 ## '# )(#" '   "& " &"' +( #". +(& #& )'"
"- #(& (-$ #  "& #"') ( -#)& (&#", &* "(& #& &$&'"/
((*
H!#* ##' )'( " ( #)(' # ( #' #'#$ +(  "(/&
 #(
H&!#* &!"" &( +(  "(/&  #( ' ( - !$" +( 
"& $)&$#' (&"( " +(& '# )(#" #&  '*"(-/* $&"(
 '#$&#$-  ## '# )(#" # "#( )' &'*  "&'
H " ( (  (& $&#((" ( !#"(#& '&" +(  "( &  #(
' ( - !$" +(  '*"(-/* $&"(  '#$&#$-  ##
'# )(#" #&  #!!& - *   $&!#'("   "" +$
Overview
Cleaning

Getting Started
1Ć2
Product Description
.41 %*31.-)7  )')3)9)-' 2#)++.2#./% )2 ! 24/%1" 3..+ &.1 !#04)1)-'
$)2/+!8)-' !-$ ,%!241)-' 6!5%&.1,2 32 /%1&.1,!-#% !$$1%22%2 3(% -%%$2
.& ".3( "%-#(3./ +!" !-$ /.13!"+% !//+)#!3).-2 6)3(
H:9 ,!7),4, 1%/%3)3)5% !-!+.' "!-$6)$3( )-  /3).- 
9 )- 3(% 23!-$!1$ 
H1%31)''%1 5)%6 -.3 !5!)+!"+% 6)3( /3).- 
H#04)2)3).- #(!--%+2<(%  (!2 36. .4 ,!8 42% !-$ $)2/+!8
!++ #(!--%+2 2),4+3!-%.42+8
H6.;")3 $)')3)9%12
H/ 3. ;/.)-3 1%#.1$ +%-'3( /%1 #(!--%+
H!5%&.1, !3(<-5%13 ! 2)-'+% 6!5%&.1, !-$ !$$ 24"31!#3 !-$ ,4+3);
/+8 36. 6!5%&.1,2 - ./3).-  %04)//%$ )-2314,%-32 )-3%'1!3% .1
$)&&%1%-3)!3% ! 2)-'+% 6!5%&.1, .1 /%1&.1, !-  &!23 &.41)%1 31!-2&.1,
.- ! 6!5%&.1, 3. $)2/+!8 )32 &1%04%-#8 2/%#31!
H4++  2.&36!1% /1.'1!,,!")+)38  (!1$#./8 .43/43 - )-2314;
,%-32 %04)//%$ 6)3( ./3).-  (!1$#./8 .43/43 42)-' 3(% ; .1
%-31.-)#2 /.132
H.,/+%3% ,%!241%,%-3 !-$ $.#4,%-3!3).- !")+)38
H-34)3)5% '1!/()#!+ )#.- ./%1!3).- "+%-$%$ 6)3( 3(% &!,)+)!1)38 .&
31!$)3).-!+ (.1)9.-3!+ !-$ 5%13)#!+ *-."2
H-;+)-% (%+/ !3 3(% 3.4#( .& ! "433.-
(%  +)23 3(% ./3).-2 !-$ !##%22.1)%2
!-$ 3(% /1.$4#3 2/%#)&)#!3).-2

TDS 820 User Manual 1Ć3
Start Up
 (+ 2(. ., -" #!#-#3#'! (,#%%(,() ',.+ -"- #- #, )+()+%2 #',-%%
' )(0+ ('
( )+()+%2 #',-%% ' )(0+ (' -" #!#-#3#'! (,#%%(,() ( -" (%%(0#'!
Installation
  ,.+ 2(. "/ -" ))+()+#- ()+-#'! '/#+('&'- )# #-#(',
(+ -&)+-.+ +%-#/ ".&##-2 %-#-. /#+-#(', ' &#,,#(', +
#'%. #' Appendix B: Specification - -" ++ ( -"#, &'.%
 / ,) (+ ((%#'! ( -"#, 2 /+# 2#'! -"- -" #+ #'-$ '
1".,- "(%, (' -" ,#, ( -" #'- 0"+ -" ' ()+-, +
+ ( '2 #+ %(0 (,-+.-#(', / - %,-  #'",  & + ('
" ,#
WARNING
To avoid electrical shock, be sure that the power cord is disconĆ
nected before checking the fuse.
 "$ -"- 2(. "/ -" )+()+ %-+#% (''-#(', " #!#-#3#'!
(,#%%(,() +*.#+,  -(   +&, ('-#'.(., +'! 3 -( 
3 ' &2 +*.#+ .) -( 4
 (''- -" )+()+ )(0+ (+ +(& -" ++5)'% )(0+ (''-(+
#!.+ 5 -( -" )(0+ ,2,-&
Operation

Start Up
Getting Started
1Ć4
Power Connector
Principal Power Switch
Fuse
Figure 1 1:ăRear Panel Controls Used in Start Up
Power On
  ## # !!)  !  &! "&# "  $! ) 
!  &! "&# #!"   &! # # "#!$#
  # ""  " # &!  # "! "  $" #
!#)  ON/STBY $## # # #  $! )
 ON/STBY $## #!" &! # "#  # "#!$# !$#"
&! #$" #  # !# !#" % & #" "&# " "# #

 # #( ""  " "# # " #'  # % #
!  &! "&#   $" # ON/STBY $## " # &!
"&#

Start Up
TDS 820 User Manual 1Ć5
ON/STBY Button
Figure 1Ć2:ăON/STBY Button
Self Test
      "  ! #
 #              !
              
  !        
      !      
 !   ! !          

Po er Off
  ON/STBY      

Getting Started
1Ć6
Setting Up for the Examples
             
            
           
To 1 MHz TEST
SIGNAL OUTPUT
on Rear Panel
Figure 1Ć3:ăThe Example Setup
        
CAUTION
Be sure to wear the antistatic wrist strap when making connections
to the front panel. The front panel input connectors are highly
susceptible to damage from electrostatic discharge.

Setting U for the Exam les
TDS 820 User Manual 1Ć7
 $   ! ! ! "( #" " "!  ! #"!
  " #"  " !  " %  "  "  " 
 " "    !# %" " "' !! "
" 1 MHz TEST SIGNAL OUTPUT "  "  
 " "  "  CH 1  " "   " "% ! "
 ! !# %" " "' !!
 " "  "  &"  TRIGGER INPUT  " "
" " ! "   !# %" " "' !!
 " "  ("( " " "  " 
" "  "   !# %" " "' !!
 " " "   "   "" " CH 1 "   
"  
 " " "   "   "" " " &"  TRIGĆ
GER INPUT " " "   "  
NOTE
Sp itting the signa using the SMA T does not preserve the 50 W
environment. As a resu t, you wi see aberrations of the signa due
to this impedance mismatch. The aberrations are of no conseĆ
quence for the examp es. However, to obtain accurate measureĆ
ments, be sure you sp it signa s using a 50 Wpower divider to
match the impedance of the test setup.
 " " "   "   "" " "  
1 MHz TEST SIGNAL OUTPUT " " "  ("(
" 
CAUTION
To prevent damage to the inputs do not attempt to measure any
signa s greater than 3ĂV peak-to-peak with the TDS 820 with
Option 1D (6ĂV peakĆtoĆpeak with the standard TDS 820).